question_answer

Draw a labelled schematic structure of a transcription unit. Explain in one line the function of each region.

Answer:

The process of copying genetic information from one strand of the DNA into RNA is termed as transcription. The transcription unit of DNA is defined primarily by the three regions in the DNA.

(a) A promoter: where RNA polymerase binds.

(b) A structural gene: which will undergo transcription.

(c) A terminator: a site where transcription will end.